Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-20T16:14:57.285Z Has data issue: false hasContentIssue false

CLEAN/MEM Deconvolution Errors: Semicompact Sources

Published online by Cambridge University Press:  19 July 2016

D. S. Briggs
Affiliation:
ATNF, PO Box 76, Epping, NSW 2121, Australia
T. J. Cornwell
Affiliation:
NRAO, PO Box O, Socorro, NM 87801, USA

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We have run a number of simulations investigating the limitations of noiseless point spread deconvolution with the VLA. On-source errors of more than .01 and off-source dynamic ranges of less than 15,000 were found for some parameters typical of high precision observations. Deconvolution errors were not confined to the support of the source, and limit the dynamic range in at least one VLA observation.

Type
Imaging Theory
Copyright
Copyright © Kluwer 1994 

References

Cornwell, T.J. and Evans, K.F.: 1985, Astron. Astrophys. 143, 7783 Google Scholar
Högbom, J.A.: 1974, Astron. Astrophys. Suppl. Ser. 15, 417426 Google Scholar
Narayan, R. and Nityananda, R.: 1986, Ann. Rev. Astron. Astrophys. 24, 127–70Google Scholar
Steer, D.G., Dewdney, P.E., and Ito, M.R.: 1984, Astron. Astrophys. 137, 159165 Google Scholar
Wakker, B.P. and Schwarz, U.J.: 1988, Astron. Astrophys. 200, 312322 Google Scholar